8071949 has 4 divisors (see below), whose sum is σ = 8078400. Its totient is φ = 8065500.

The previous prime is 8071937. The next prime is 8071981. The reversal of 8071949 is 9491708.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 8071949 - 2⁴ = 8071933 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8071249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 677 + ... + 4074.

It is an arithmetic number, because the mean of its divisors is an integer number (2019600).

Almost surely, 2^8071949 is an apocalyptic number.

It is an amenable number.

8071949 is a deficient number, since it is larger than the sum of its proper divisors (6451).

8071949 is a wasteful number, since it uses less digits than its factorization.

8071949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6450.

The product of its (nonzero) digits is 18144, while the sum is 38.

The square root of 8071949 is about 2841.1175618056. The cubic root of 8071949 is about 200.5977864765.

The spelling of 8071949 in words is "eight million, seventy-one thousand, nine hundred forty-nine".